Hi! Personally, I don't think there's any harm in applying and see where that goes. I think one should apply to as many as you can at least until you reach to the interview stage. Although I do believe I read somewhere on this forum with more specific (and possibly sound advice compared to mine) tips on not applying to a broad range especially to the same organization i.e. P2 to P5. For me, I was only aiming at P2 and the occasional rare P1. I did try out on a handful of P3 but who was I kidding But that's my point, the range isn't crazy far.